Exploració per autor "Cervera Ruiz, Miguel"
Ara es mostren els items 21-40 de 137
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A strategy for the numerical simulation of metal deposition and multi-pass welding processes
Dialami, Narges; Chiumenti, Michele; Agelet de Saracibar Bosch, Carlos; Cervera Ruiz, Miguel (Centro Internacional de Métodos Numéricos en Ingeniería (CIMNE), 2009)
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Accés restringit per política de l'editorialIn this work a numerical model is developed to accurately predict temperature evolution and distortions associated to the successive welding layers deposited during the multi-pass welding and metal deposition processes (MD). -
A thermodynamically consistent plastic-damage framework for localized failure in quasi-brittle solids: material model and strain localization analysis
Wu, Jian-Ying; Cervera Ruiz, Miguel (2016-06)
Article
Accés obertAiming for the modeling of localized failure in quasi-brittle solids, this paper addresses a thermodynamically consistent plastic-damage framework and the corresponding strain localization analysis. A unified elastoplastic ... -
Accurate and locking-free analysis of beams, plates and shells using solid elements
Saloustros, Savvas; Cervera Ruiz, Miguel; Kim, Sungchul; Chiumenti, Michele (Springer, 2021-03)
Article
Accés obertThis paper investigates the capacity of solid finite elements with independent interpolations for displacements and strains to address shear, membrane and volumetric locking in the analysis of beam, plate and shell structures. ... -
Accurate thermal-induced structural failure analysis under incompressible conditions
Filho, Carlos Augusto Moreira; Barbat Vlad, Gabriel; Cervera Ruiz, Miguel; Chiumenti, Michele (Elsevier, 2022-06)
Article
Accés restringit per política de l'editorialIn this work, the performance of the mixed 3-field displacement/deviatoric-strain/pressure (u/e/p) finite element is examined for nonlinear thermo-mechanical structural applications under incompressible behavior. The ... -
Advances in the numerical simulation of 3D FSW processes
Agelet de Saracibar Bosch, Carlos; Chiumenti, Michele; Cervera Ruiz, Miguel; Dialami, Narges; Santiago, Diego; Lombera, Guillermo (2011)
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Accés restringit per política de l'editorialThis work deals with the computational modeling and numerical simulation of 3D Friction Stir Welding (FSW) processes. Eulerian and ALE formulations have been used to solve the quasi-static thermal transient governing ... -
An accurate, adaptive and scalable parallel finite element framework for the part-scale thermo-mechanical analysis in metal additive manufacturing processes
Filho, Carlos Augusto Moreira; Caicedo Silva, Manuel Alejandro; Cervera Ruiz, Miguel; Chiumenti, Michele; Baiges Aznar, Joan (Springer, 2023-10-06)
Article
Accés restringit per política de l'editorialThis work introduces a distributed memory machine and octree-based Finite Element (FE) framework for modeling metal Additive Manufacturing (AM) processes. In this sense, an Adaptive Mesh Refinement (AMR) is used to accurately ... -
An adaptive Finite Element strategy for the numerical simulation of additive manufacturing processes
Baiges Aznar, Joan; Chiumenti, Michele; Filho, Carlos Augusto Moreira; Cervera Ruiz, Miguel; Codina, Ramon (Elsevier, 2021-01)
Article
Accés obertIn this work an adaptive Finite Element strategy to deal with the numerical simulation of Additive Manufacturing (AM) processes is presented. The Selective Laser Melting (SLM) is chosen as the reference technology because ... -
An energy-equivalent d+/d- damage model with enhanced microcrack closure-reopening capabilities for cohesive-frictional materials
Cervera Ruiz, Miguel; Tesei, Claudia (2017-04)
Article
Accés obertIn this paper, an energy-equivalent orthotropic d+/d- damage model for cohesive-frictional materials is formulated. Two essential mechanical features are addressed, the damage-induced anisotropy and the microcrack ... -
An enhanced finite element macro-model for the realistic simulation of localized cracks in masonry structures: a large-scale application
Saloustros, Savvas; Pelà, Luca; Cervera Ruiz, Miguel; Roca Fabregat, Pedro (Taylor & Francis, 2018-03)
Article
Accés obertFinite element macro-modelling approaches are widely used for the analysis of large-scale masonry structures. Despite their efficiency, they still face two important challenges: the realistic representation of damage and ... -
An orthotropic damage model for the analysis of masonry structures
Pelà, Luca; Cervera Ruiz, Miguel; Roca Fabregat, Pedro (2013)
Article
Accés restringit per política de l'editorialThis paper presents a numerical model for nonlinear analysis of masonry structural elements based on Continuum Damage Mechanics. The material is described at the macro-level, i.e. it is modeled as a homogeneous orthotropic ... -
Analysis of the effect of provisional ties on the construction and current deformation of Mallorca cathedral
Pelà, Luca; Bourgeois, Julien; Roca Fabregat, Pedro; Cervera Ruiz, Miguel; Chiumenti, Michele (2016-04)
Article
Accés restringit per política de l'editorialThis paper presents the analysis of the structure of Mallorca Cathedral taking into account the influence on structural behaviour of auxiliary iron ties used during the construction process. Recent studies (Roca et al., ... -
Análisis de procesos de estereolitografía por el método de los elementos finitos
Bugeda Castelltort, Gabriel; Lombera, Guillermo; Cervera Ruiz, Miguel; Oñate Ibáñez de Navarra, Eugenio (1995)
Article
Accés obertLa estereolitografía es uno de las técnicas utilizadas en los procesos de fabricación rápida de prototipos, que tiene un gran interés industrial debido a su ahorro en tiempo respecto a los procesos tradicionales. Una de ... -
Análisis dinámico en rotura de estructuras laminares y tridimensionales de hormigón armado
Cervera Ruiz, Miguel; Hinton, E. (1987)
Article
Accés obertEn este artículo se presenta un modelo computacional tridirnensional para el análisis dinámico en condiciones extremas de estructuras de hormigón armado. El modelo contempla la discretización de la ecuación dinámica de ... -
Appraisement of planar, bending and twisting cracks in 3D with isotropic and orthotropic damage models
Barbat Vlad, Gabriel; Cervera Ruiz, Miguel; Chiumenti, Michele (Springer, 2018-03)
Article
Accés obertThis paper discusses the modeling of cracking in quasi-brittle materials using isotropic and orthotropic damage constitutive laws. A mixed strain/displacement finite element formulation is used, taking advantage of its ... -
Architecture of a multi-crack model with full closing, reopening and sliding capabilities
Cervera Ruiz, Miguel; Barbat Vlad, Gabriel; Chiumenti, Michele (Springer, 2020-06)
Article
Accés obertThis paper discusses the finite element modeling of cracking of quasi-brittle materials under cyclic loading. A damage based crack model is proposed, which considers tensile and compressive damage, irreversible strains ... -
Buildability modeling of 3D-printed concrete including printing deviation: a stochastic analysis
Zhu, Jinggao; Ren, Xiaodan; Cervera Ruiz, Miguel (2023-11)
Article
Accés restringit per política de l'editorialOwing to the formwork-free construction, 3D concrete printing shows great prospects in construction industry. However, this manner also results in non-verified geometric precision, which is prone to generate uncontrolled ... -
Challenges, tools and applications of tracking algorithms in the numerical modelling of cracks in concrete and masonry structures
Saloustros, Savvas; Cervera Ruiz, Miguel; Pelà, Luca (2019-09)
Article
Accés obertThe importance of crack propagation in the structural behaviour of concrete and masonry structures has led to the development of a wide range of finite element methods for crack simulation. A common standpoint in many of ... -
Comparison of a fluid and a solid approach for the numerical simulation of friction stir welding with a non-cylindrical Pin
Bussetta, P.; Dialamishabankareh, Narges; Boman, Romain; Chiumenti, Michele; Agelet de Saracibar Bosch, Carlos; Cervera Ruiz, Miguel; Ponthot, J-P. (CIMNE, 2013)
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Accés obertFriction stir welding (FSW) process is a solid-state joining process during which materials to be joined are not melted. As a consequence, the heat-affected zone is smaller and the quality of the weld is better with respect ... -
Comparison of a fluid and a solid approach for the numerical simulation of friction stir welding with a non-cylindrical pin
Bussetta, Philippe; Dialamishabankareh, Narges; Boman, Romain; Chiumenti, Michele; Agelet de Saracibar Bosch, Carlos; Cervera Ruiz, Miguel; Ponthot, Jean Philippe (2013)
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Accés obert -
Computational characterization of polymeric materials 3D-printed via fused filament fabrication
Dialamishabankareh, Narges; Rivet Fernández, Iván; Cervera Ruiz, Miguel; Chiumenti, Michele (Taylor & Francis Group, 2022-02)
Article
Accés obertThis work develops a novel homogenization-based computational strategy for predicting the mechanical properties of fused filament fabricated parts by characterizing the component according to the different printing patterns ...